Step 2. Configuring Jumpers On The Dmc-14Xx - Galil Motion Control DMC-14 5 Series Manual

available on the DMC-1425. In standard servo operation, the DMC-1415 has one DAC for the single
axis. Issuing the BA command will enable the second DAC for commutation. Further instruction for
sinusoidal commutation connections are discussed in Step 6.
Stepper Motor Operation:
To configure the DMC-141X for stepper motor operation, the controller requires that the command,
MT, be given and jumpers placed to designate stepper motor. The installation of the stepper motor
jumper is discussed in the following section entitled "Configuring Jumpers on the DMC-14XX".
Further instructions for stepper motor connections are discussed in Step 8c.

Step 2. Configuring Jumpers on the DMC-14XX

Master Reset and Upgrade Jumper
JP1 contains two jumpers, MR and UP. The MR jumper is the Master Reset jumper. When MR is
connected, the controller will perform a master reset upon PC power up or upon the reset input going
low. Whenever the controller has a master reset, all programs, arrays, variables, and motion control
parameters stored in EEPROM will be ERASED.
The UP jumper enables the user to unconditionally update the controller's firmware. This jumper is
not necessary for firmware updates when the controller is operating normally, but may be necessary in
cases of corrupted EEPROM. EEPROM corruption should never occur, however, it is possible if there
is a power fault during a firmware update. If EEPROM corruption occurs, your controller may not
operate properly. In this case, install the UP Jumper and use the update firmware function on the Galil
Terminal to re-load the system firmware.
If the DMC-14XX will be driving a stepper motor, special stepper mode jumpers must be connected.
Location JP2 on the DMC-14XX contains the jumper SMX. If stepper motors are being used, this
jumper must be installed.
In addition to the SMX jumper, the controller output must be configured for stepper output by the
placement of jumpers at location JP3. This jumper location controls whether the controller will output
the analog motor command signal (MC), or the step and direction signals (SD). Figure 2.3 shows how
these jumpers should be configured for stepper mode.
Please note, the standard DMC-1425 only provides access to one axis when in stepper mode. For both
axes as steppers order as DMC-1425-STEPPER.
Note: On the ICM-1460 the PULSE signal is output to pin 4 (ACMD) and the direction signal is
output to pin 38 (ACMD2).
Stepper Motor Jumper Selection - Rev E or newer
The newest version of the DMC-1425 the controller is configurable for stepper or servo through
jumpers instead of needing rework done by the factory. The configuration is as follows-
X Servo , Y Servo
X Servo, Y Stepper
X Stepper, Y Stepper
Note1: When the Y axis is set for stepper mode the pulse output for the Y axis is on the same pin as the
error output meaning that the red LED will be on. To permanently disable the red LED contact Galil.
Note2: When the controller is configured for X servo and Y stepper, the amp enable signal for the X
axis is no longer available as it is used for Y sign.
10 Chapter 2 Getting Started
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Stepper Motor Jumpers - Hardware Rev A-D
JP2 JP2 JP1
SMX SMY Y Step
X X
X X X
JP3 JP3
SD MC
Both
Top Row Bottom Row
Both
DMC-14x5/6